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UK money calculators

Calculators

Less guesswork. More room to plan.

Explore mortgage repayments, childcare costs and family support. Choose a calculator to get started.

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15 free calculators

UK money calculators

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Clear, practical estimates to help you plan with more confidence.

15 free calculators

LTV and deposit calculator

Calculate loan to value, deposit or equity, and the extra money needed to reach a target LTV when buying or remortgaging.

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Stamp duty calculator

Estimate residential SDLT, LBTT or LTT across the UK, including first-time buyer relief and additional-property rates.

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Mortgage repayment calculator

Compare repayment and interest-only mortgages, fixed deals, variable rates and monthly or one-off overpayments.

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Mortgage Balance at Renewal Calculator

Estimate how much you'll still owe and your loan to value when your mortgage deal ends, including monthly and lump-sum overpayments.

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Tax-Free Childcare calculator

Estimate how much government support you could receive through the Tax-Free Childcare scheme based on your childcare costs and remaining allowance.

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Mortgage switch break-even calculator

Work out how many months of lower mortgage payments it could take to recover the upfront cost of switching deals.

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Nursery cost calculator

Estimate the annual and monthly cost of nursery care and compare it with any support you expect to receive.

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Funded childcare hours calculator (England)

Compare universal 15-hour provision and 30-hour working-parent support in England, assuming eligibility has been confirmed.

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Child Benefit calculator

Estimate gross annual Child Benefit, the High Income Child Benefit Charge and the amount left after accounting for that tax charge.

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Savings vs mortgage overpayment calculator

Compare putting spare money into savings against making mortgage overpayments, including estimated savings interest tax.

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Childcare cost calculator

Estimate your average weekly, monthly and annual childcare budget and compare it with any support available.

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Savings Goal Calculator

Work out how much to save each month to reach a savings target by your chosen deadline, including compound interest.

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Savings interest calculator

Estimate daily savings interest, regular deposits, interest payment delays and the balance available on your cash-out date.

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Personal Savings Allowance Calculator

Estimate how much interest you can earn before paying UK savings tax, and how much tax may be due in 2026/27.

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Inflation vs Savings Calculator

See whether your savings keep up with rising prices and what their future balance is worth in today's money.

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